Install app via usb: The device is temporarily restricted

Question

When I toggle on the install via USB in developer mode:

• it will pop the toast message said that the device is temporarily restricted

Answer 1

i had same problem with MI Redmi 4a i solved it by ->

first become a developer by clicking on

setting->About phone->MIUI version (7-8 times)

then, setting->additional setting->developer options->USB debugging

Turn on your usb debugging, then in developer options go for last item name is 'Turn on MIUI optimization', turn off this option it will ask for reboot , then reboot device by clicking Turn off & reboot button

after reboot go to Setting->Permissions click on top right menu button Turn on install via USB option

thats it !